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Michael Black
OpenXG UE
Commits
6e7d8a55
Commit
6e7d8a55
authored
Mar 22, 2018
by
Guy De Souza
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3/4 sampling for 80MHz / Max ofdm size 4096
parent
8d758de9
Changes
2
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2 changed files
with
21 additions
and
6 deletions
+21
-6
openair1/PHY/INIT/nr_parms.c
openair1/PHY/INIT/nr_parms.c
+14
-5
openair1/PHY/MODULATION/ofdm_mod.c
openair1/PHY/MODULATION/ofdm_mod.c
+7
-1
No files found.
openair1/PHY/INIT/nr_parms.c
View file @
6e7d8a55
...
...
@@ -66,11 +66,20 @@ int nr_init_frame_parms(LTE_DL_FRAME_PARMS *frame_parms)
case
189
:
case
217
:
//80 MHz
frame_parms
->
ofdm_symbol_size
=
4096
;
frame_parms
->
samples_per_tti
=
61440
;
frame_parms
->
first_carrier_offset
=
2794
;
//4096 - 1302
frame_parms
->
nb_prefix_samples0
=
320
;
frame_parms
->
nb_prefix_samples
=
288
;
if
(
frame_parms
->
threequarter_fs
)
{
frame_parms
->
ofdm_symbol_size
=
3072
;
frame_parms
->
samples_per_tti
=
46080
;
frame_parms
->
first_carrier_offset
=
1770
;
//3072 - 1302
frame_parms
->
nb_prefix_samples0
=
240
;
frame_parms
->
nb_prefix_samples
=
216
;
}
else
{
frame_parms
->
ofdm_symbol_size
=
4096
;
frame_parms
->
samples_per_tti
=
61440
;
frame_parms
->
first_carrier_offset
=
2794
;
//4096 - 1302
frame_parms
->
nb_prefix_samples0
=
320
;
frame_parms
->
nb_prefix_samples
=
288
;
}
break
;
case
245
:
...
...
openair1/PHY/MODULATION/ofdm_mod.c
View file @
6e7d8a55
...
...
@@ -67,7 +67,7 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
)
{
short
temp
[
2048
*
4
]
__attribute__
((
aligned
(
32
)));
short
temp
[
4096
*
4
]
__attribute__
((
aligned
(
32
)));
unsigned
short
i
,
j
;
short
k
;
...
...
@@ -101,6 +101,12 @@ void PHY_ofdm_mod(int *input, /// pointer to complex input
idft
=
idft2048
;
break
;
case
3072
:
idft
=
idft3072
;
case
4096
:
idft
=
idft4096
;
default:
idft
=
idft512
;
break
;
...
...
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